Photos

Heavy Rainfall, Flooding Slams Texas (PHOTOS)

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Joe Sample crosses train tracks on Houston Avenue as heavy rain and wind moves through Sunday, Oct. 25, 2015, in Houston. Drenching storms that the remnants of Hurricane Patricia dragged into Texas finally cleared Sunday without leaving behind the death or devastation of torrential rain and floods that hit the state earlier in the year. (Michael Ciaglo/Houston Chronicle via AP)

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Joe Sample crosses train tracks on Houston Avenue as heavy rain and wind moves through Sunday, Oct. 25, 2015, in Houston. Drenching storms that the remnants of Hurricane Patricia dragged into Texas finally cleared Sunday without leaving behind the death or devastation of torrential rain and floods that hit the state earlier in the year. (Michael Ciaglo/Houston Chronicle via AP)

A slow-moving storm system, with added moisture from the remnants of Hurricane Patricia, pounded Texas over the weekend, dropping record rainfall and forcing dozens of high water rescues across the state.

Rainfall rates reached 2 to 3 inches an hour at times in Houston Saturday. The city's Emergency Operations Center escalated to Level 1 response late Saturday to respond to major interstates covered by water.

(MORE: What's Next for All This Moisture)

The heavy rain spread east toward the end of the weekend, but rain isn't the only threat. Isolated tornadoes are also possible along the Gulf Coast into Monday.

The gallery above features the latest pictures from this heavy rain event.

MORE ON WEATHER.COM: Patricia: Strongest Hurricane Ever Recorded